YOU SAID:
Never gonna give you up. Never gonna let you down.
INTO JAPANESE
あなたをあきらめるつもりはありません。あなたを失望させないでください。
BACK INTO ENGLISH
never gonna give you up. Please do not let me down.
INTO JAPANESE
あなたをあきらめるつもりはありません。私を失望させないでください。
BACK INTO ENGLISH
never gonna give you up. Please do not let me down.
That didn't even make that much sense in English.